I started monitoring IPv6 access to www.netflix.com after seeing this posting (http://www.personal.psu.edu/dvm105/blogs/ipv6/2012/06/netflix-is-back.html) and what I found, over the week, was that access was coming and going (www.premieronline.net/~fbulk/netflix.png). But not because of IPv6 connectivity, but because the AAAA's were coming and going. Netflix's DNS TTL is pretty short. I assume Netflix has some global DNS load balancing so my perspective may not be complete. Has anyone else been seeing this? I contacted a Netflix employee (he's well known on this list) and he responded once but I haven't heard back since Saturday. Here's some sample queries from Saturday and today. ========================================================= nagios:/home/fbulk# dig AAAA www.netflix.com ; <<>> DiG 9.7.3 <<>> AAAA www.netflix.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26825 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.netflix.com. IN AAAA ;; AUTHORITY SECTION: netflix.com. 150 IN SOA dns.netflix.com. nicadmin.netflix.com. 2012060104 900 600 1209600 1800 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sat Jun 2 09:29:17 2012 ;; MSG SIZE rcvd: 82 nagios:/home/fbulk# ========================================================= ========================================================= nagios:/home/fbulk# dig AAAA www.netflix.com ; <<>> DiG 9.7.3 <<>> AAAA www.netflix.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33117 ;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 8, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.netflix.com. IN AAAA ;; ANSWER SECTION: www.netflix.com. 132 IN CNAME dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::3210:e195 dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::3213:5282 dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::3213:6340 dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::3213:779a dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::1715:75cd dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::1715:eceb dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::1717:e388 dualstack.wwwservice--frontend-313423742.us-east-1.elb.amazonaws.com. 12 IN AAAA 2406:da00:ff00::1717:eb58 ;; AUTHORITY SECTION: elb.amazonaws.com. 7092 IN NS ns-916.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-941.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-927.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-925.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-934.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-935.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-944.amazonaws.com. elb.amazonaws.com. 7092 IN NS ns-947.amazonaws.com. ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sat Jun 2 09:34:35 2012 ;; MSG SIZE rcvd: 504 nagios:/home/fbulk# ========================================================= ========================================================= nagios:/home/fbulk# dig AAAA www.netflix.com ; <<>> DiG 9.7.3 <<>> AAAA www.netflix.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34529 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.netflix.com. IN AAAA ;; AUTHORITY SECTION: netflix.com. 94 IN SOA dns.netflix.com. nicadmin.netflix.com. 2012060107 900 600 1209600 1800 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Wed Jun 6 09:00:44 2012 ;; MSG SIZE rcvd: 82 nagios:/home/fbulk# ========================================================= Frank Bulk